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Failed to parse source for import analysis because the content contains invalid JS syntax
Exact error
[vite] Internal server error: Failed to parse source for import analysis because the content contains invalid JS syntax. If you are using JSX, make sure to name the file with the .jsx or .tsx extension.
What it means
Vite (used by Bolt and many AI builders) found JSX in a file it treats as plain JavaScript, or a syntax error the AI introduced.
Likely causes
- JSX inside a .js/.ts file.
- Unbalanced braces/tags from a partial AI edit.
How to fix it
Rename the file to .jsx / .tsx and update imports.
Open the file at the reported line and fix the syntax error, or ask the AI to "fix the syntax error in <file> at line N" with the full error pasted.
Prevent this next time
- Connect the project to GitHub so every AI edit is versioned and reversible.
- Run `npm run build` locally or in CI before deploying an exported project.
FAQ
What does "Failed to parse source for import analysis because the content contains invalid JS syntax" mean?
Vite (used by Bolt and many AI builders) found JSX in a file it treats as plain JavaScript, or a syntax error the AI introduced.
What usually causes it?
JSX inside a .js/.ts file. Unbalanced braces/tags from a partial AI edit.
How do I fix it?
1. Rename the file to .jsx / .tsx and update imports. 2. Open the file at the reported line and fix the syntax error, or ask the AI to "fix the syntax error in <file> at line N" with the full error pasted.
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